JBoss: cannot use RMI when underlying IP changes

Hi, I'm new to JBoss.
I would like to deploy some EJBs on JBoss to which remote clients are able to access across the Internet.
I have a FQDN for the JBoss server. However I found that after the underlying IP address changed (after the server started), the clients cannot access to the EJBs through RMI (port 1098).
Run in debug mode, server.log shows the name server stub as follows:
[org.jboss.naming.NamingService] NamingServer stub: NamingServer_Stub[UnicastRef2 [liveRef: [endpoint:[xxx.xxx.xxx.xxx:1098,org.jboss.net.sockets.DefaultSocketFactory@ad093076](local),objID:[0]]]]
I also read the JBoss source code, and in fact the stub is bound to an IP address and is cached once the server starts. A listener (BootstrapRequestHandler in org.jnp.server.Main)is responsible to return the stub whoever requests it.
            OutputStream os = socket.getOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(os);
            out.writeObject(serverStub);To solve this, I have to restart JBoss.
But It's kind of annoying....
Can anyone help me pls? Thanks!

Thanks all your replies!
I found the solution. It's not JBoss problem, but Java RMi's.
That's why I can't anywhere in the JBoss source code controlling where RMI server bound to.
I have to set a the property - java.rmi.server.hostname when starting JBoss.
e.g. ./run.sh -Djava.rmi.server.hostname=myFQDN.com
Therefore the remote client will only connect to my FQDN rather than the specific IP address.

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